How about learning some Persian greetings before traveling to Iran? Whether you want to get a taxi, pay for your dinner or talk to the local people and interact with Iranians, you will need to know some Persian. For sure you will meet lots of Iranians who come to you to have a chat and maybe even hang out together. Remember, Modern Persian and Farsi are the same language.
The fact is that learning Persian is not quite as easy for many people since the grammar structure is different to what they know and what they have been taught. Most of the Persian/Farsi alphabet is similar to the Arabic alphabet and there are lots of similar words in both languages. However, these two languages, are totally different due to the different grammar structure.
There are a couple of Persian phrases you might need while traveling to Iran and talking to Iranians. Here is list of common, survival and useful Persian greetings and phrases written in English and Persian. The pronunciation is also included. Most of the sentences below are used for the everyday conversations, so they might come handy if you memorize them.
Farsi is written from right to left; Both words & numbers. Its alphabet consists of 32 letters which some of them have a similar sound. Short vowels are not written in Farsi. Each alphabet letter has two forms : Capital & Small.